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A Tale of Two Jazzmasters

I haven't done it yet, the bridge posts were just in the body holes for that mock-up picture. I'm not anticipating too much complication, but you know how that goes... I'm planning on cleaning the holes up with a dowel and sandpaper, then driving the thimbles home with a dowel and deadblow hammer, as I've done in the past for TOM style bushings. In fact I think it should be a little simpler than those as the lip of the thimble rests on the finish surface rather than seating down within it. But all that being said, I'll report in detail when I do it. Still away for a few more days.
 
You might try sticking those still very white control knobs in some strong tea/coffee for a while.  Did that with a Gilmourish black strat copy I put together with the cream EMG's and they matched perfectly.  If you don't like it you can always soak it off.
 
Progress!

Team Transparent Red:

I used the Gotoh Magnum Locks on this guitar. They can be a bit fiddley to get accustomed to when stringing, but they perform flawlessly and I dig the looks. Kind of harkening to the Saf-T-Post tuners.

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Bridge thimbles were installed using the classic "Sand-Forever-Then-Beat-With-A-Deadblow-Hammer" technique. All went well and the bridge posts slipped right in. Also took the opportunity to mount the vibrato. A guitar is beginning to emerge, I'm getting a little excited!

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Team Sea Foam Green:

Schaller/Fender locking tuners for the Sea Foam Green guitar. Killer tuners. Took a good bit of sanding to get the tuner holes to accept the tuning machine, which was surprising. Not a problem, but still surprising.

Locating the tuner pin holes with the, well, with the Tuner Pin Hole Locator. I have to say this thing is frickin' awesome. I've done them without it and this jig is just the bee's knees, man.
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Straight as an arrow.
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Thimbles installed using the aforementioned abrasives and bludgeoning technique. Again, no trouble at all. Bridge and vibrato in place as well. Looking good! While I don't have a picture of it, we mocked it up with the pickguard and I'll just say that I'm really psyched to see it come together!
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An item of note. I was really surprised at how much the bridge thimble holes were requiring to be enlarged, so I decided to do some investigating. I just happened to have a set of stock Jazzmaster thimbles in the garage and I found they dropped right into the hole while the Mastery thimbles wouldn't even start. I broke out the micrometer and found the stock thimbles measured 0.355" OD while the Mastery thimbles measured 0.375" OD. A couple hundredths works out to a LOT of sanding! Good knowledge nugget to stow away, though!
 
Where's that :salivating!!!: emoji when you need it?!

Looking *mighty* nice!

Glad to see these bad boys getting a little attention.
 
Spent some more time with the Transparent Red JM today, making headway!

I'm not sure how you other Jazzmaster club members handled the string ground at the vibrato, but this prospective member stuck with the "Simple Is Good" philosophy.
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I cleaned up the neck pocket, although it really didn't need much. It was quite clean to begin with. Mostly the back wall of the pocket and the corners needed a little love. I got the pickguard on the body and affixed it (and the pickups) with masking tape, then mounted the neck and strung the guitar for fitting/alignment purposes. First observation: the action is sky-high even with the bridge bottomed out. I'll have to put a closer eye on the outer lip of the pocket and probably get a rather beefy shim together. Glimmer and MattF, did you encounter the same?

I tuned the guitar to pitch and used the string tension to fully "seat" the neck in the pocket. Having done that, I aligned the pickguard and marked the mounting holes. The pickguard can't be removed with the neck in place, so I tore everything back down, removed the pickguard, and drilled the holes. Everything lined up very nicely, save for the pickup covers won't go into position due to slight (very slight) disagreement in pickup location between the pickguard and the route. That will be a bit of a project, I'd like to handle it with sandpaper and leave the Routerbeast out of it.... That's a matter for another afternoon however. For this afternoon, here's where she stands:
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Oh yeah, got the strap buttons on as well. I am absolutely loving how she's coming together. Still have a couple of hurdles in front of me, but it will all be overcome.

Right now I've got the knobs and the vibrato arm tip soaking in a double espresso shot to darken them a bit, as per Vetteman's recommendation. I'll post a picture of how that turns out.
 
I've got to say I'm impressed by the coffee treatment! This is after about 3 hours in the drink. Unaltered on the left and coffee-stained on the right, with a pickup cover for reference. Couldn't ask for better, thanks Vetteman!

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Looking good, Verne!

My neck definitely needed to be shimmed, though this was done by the tech who cut the nut and set the guitar up. From what I understand it's common practice with these guitars. FYI here's an on-going thread on the Offset Guitar Forum discussing same.

Sorry to hear about the slight offset, no pun intended, between the pickup "holes" in the guard and the routs in the body – hope it all works out fine w/minimal hassle for you. I remember being surprised at how little play there was in pick guard placement w/the pup covers in and actually wound up fixing the guard to the body around the pup covers, meaning I put the pup covers in the routs – snug fit! – then put on the guard and drilled holes with the guard in place. Here's a link to the post in my build thread discussing it.

And: agreed on the espresso treatment. Great trick!
 
Thanks, Glimmer!

I anticipated some shimming, but I was surprised at just how high things were actually riding. Every bit as high as the Mustang I did with the TOM, which was pretty high! I'll try a few shims and see what it takes to get it in a good spot. Generally I make my shims by gluing layers of card stock cut in decreasing lengths to provide a taper, must admit though that the Stew-Mac shims referenced in that OSG thread are pretty tempting. I might have to give those a whirl on a future project.

I think I would have approached the pickguard the same as you describe, but given that the pickguard in this case is metal I wanted to make absolutely certain that there was no conflict at the neck pocket. It's no biggie to massage a plastic pickguard at the neck pocket, but it would have been a major bummer in this instance. So, better I suppose to get the neck pocket right and take the tweaking in the wood of the pickup cavity. It is rather surprising just how tight the tolerances are there!
 
One last thing re string height / bridge / set-up: Woody, the maker of the Mastery bridge, recommends that it be as low as possible and that height be achieved by raising the saddles, rather than vice versa. You may already be aware of this but just in case, as you proceed to shim and set-up...
 
Duly noted! That rings a very faint bell now that you've mentioned it, but I appreciate the reminder and will bear it in mind!
 
It seems to hold true, over and over again, that the best solution to a given conundrum lies right in the middle of the more extreme solutions. So, in my case, the case of the pickup covers that didn't want to fit, on the one extreme I had hand-sanding with tiny little 1/4" strokes for 6 days and on the other I had breaking out the Routerbeast to remove 1/8" of material while attempting to not destroy the entire body. Right there in the middle, hiding in plain sight, was the Dremel with a sanding drum. Worked a treat, mission accomplished in about 30 minutes. I don't have pictures of that because I was kind of "in it", sanding - fitting - sanding - fitting - sanding - fitting, but yeah, that's the way to go.

I made a shim out of 8 layers of card stock cut progressively shorter to provide a taper and glued together. I use a glue stick for that to keep things tidy and avoid excessive glue thickness. I ended up with 0.050" on the thick end, and essentially 0.0" on the thin end as I let the taper run out to the bare wood at the end of the pocket.

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Very happy with it, geometry is just right! Action is 4/64" on the treble side, 5/64 on the bass side, and the bridge is nice and low. High enough that it is not sitting flat on the thimbles, but comfortably on the low end of the adjustment span. Still more setup and dialing in to be done, but definitely in a good spot.

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Installed Mastery's string tree (shhh, don't tell Cagey!), I really dig it. The mounting screw was crazy long though, had to check and re-check and double re-check the masking tape depth marker on the drill bit before committing to that one. Went in without any trouble and looks great. Also does an admirable job of increasing break angle over the nut and eliminating sympathetic vibration  :icon_biggrin:

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Lo and behold, she is no longer a pile of parts in various stages of assembly. Today, she is a guitar!

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She sounds AWESOME. Exactly what was in my head. I sat down to do a bit of functional check-out before I had done anything even remotely resembling setup work, and still managed to pass about an hour before forcing myself to get back to work. I am really happy that I ended up going with these Rumplestiltskin pickups. They are exactly what I was wanting from the ones I was going to wind. I do still intend to wind pickups for it, but spending time with these is going to help me set an excellent reference point.

You may or may not recall from earlier in this thread that I wired this guitar in a non-traditional way: the pickup selector is still functional when the rhythm/dark circuit is engaged. I had no idea if it would be great or if it would be awful. I can officially say I am loving the bridge pickup in the rhythm circuit! Not muddy at all, just a nice smokey bluesy kind of sound that absolutely cooks. It makes me play Cramps songs. Which is never a bad thing.

Still some ongoing setup stuff to be done: need to work on the nut and the intonation, made a couple of truss rod moves and need to see where that settles out. But for all intents and purposes this is a done Jazzmaster!
 
Great news all around!

Funny about the string tree: bought one myself but never put it on (the tech who did the set-up thought it unnecessary). I still have it just in case I have a change of heart. I do get some ringing – audible unplugged, but inaudible when amplified, unless it's contributing to (or perhaps even is) the "chime."

Interesting too your including the bridge pickup in the rhythm circuit. Would love to hear it if you ever get around to recording some samples. And I agree: if it moves you to play some Cramps tunes, well heck, it can't be bad! (*Bad Music for Bad People* remains a major fav.)

It's truly a beauty – congrats!

Now, what about your dad's...?  :glasses10:
 
Thanks, Glimmer!

Dad's Sea Foam Green JM remains a work in progress. I've been encouraging him to ditch work and come over and do guitar stuff. Not sure if that makes me the devil on the shoulder or the angel, but it seems like pretty good advice to me!

I'm getting ringing from between the bridge and tailpiece on the high E and the B strings, but like you, I figure that's part of the character. No plans to do anything different there unless I need to.

There will most certainly be audio, not sure when, but it's something I'm looking forward to doing.
 
Wowie! That looks amazing man, I can bet you'll be playing that thing all day everyday now. I'm looking forward to seeing your Dad's JM coming along as well.
 
Thank you kindly!

Got the nut slots cut to depth and dialed in the intonation today. The intonation was almost perfect without touching anything, which was a bit mind blowing. Just a small tweak on the G and high E was all that was needed. This thing is a ball to play, really digging it. Going to take it over to Pop's tonight.

I am totally smitten with this vibrato mechanism. It is fantastic for the subtle warbly natural-chorusing sort of thing that I dig. In the past, I've always favored Bigsby's over most anything else, but I think I like this better even than a Bigsby...
 
Verne Bunsen said:
I am totally smitten with this vibrato mechanism. It is fantastic for the subtle warbly natural-chorusing sort of thing that I dig. In the past, I've always favored Bigsby's over most anything else, but I think I like this better even than a Bigsby...

Agree that it's might nice!  :icon_biggrin:
 
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